Engine build on the brain

If I use a fel pro 1008 head gasket .039/4.18 I get a compression of 11.38. Recalculate for 108 install and I get a dynamic of 8.71 and cranking pressure of 177 if I'm doing it right. This is where I'm getting confused, these numbers are high for what's considered safe if I understand it right. What kind of numbers should I be looking for to meet my goal and intended use